The longest running and if not the most successful hip hop record label, Def Jam Recordings, is celebrating their 25th year in the game of giving you dope music! So, in honor of that they are releasing a double-disc compilation of their hottest tunes from every Def Jam artist stretching from the LL Cool J all the way to present day Rihanna! If you want a hard copy you have to wait till April, but if you want a head start you can buy it on iTunes now!